Question

The following is a calcium intake measurement for children fourth to sixth grades in 33 schools...

The following is a calcium intake measurement for children fourth to sixth grades in 33 schools in Ontario over a three-day period.

Boys

n = 900

Girls

n = 900

Sample mean

Population

standard deviation

Sample mean

Population standard deviation

Calcium (mg)

320

180

295

180

a.     Construct 95% confidence intervals for the calcium intakes of both boys and girls.

b.     Construct 99% confidence intervals for the calcium intakes of both boys and girls.

c.     Do these intervals show evidence if the boys and girls consume the same amount? Explain.

Please show all work!! Thank you in advance!

Math   Statistics-And-Probability   
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